Is it possible to set the default window size for a Windows 8.1 app running on Windows 10?
I know that this can be done for a UWS app using APIs introduced in Windows 10. However, converting the app to Windows 10 will take some time.
In the meantime, I would like to be able to release a quick fix which would ensure that current Windows 8.1 app launches with the correct size.
Does anyone know how to achieve this?
You could use reflection to call part of windows 10 sdk at runtime within your windows 8.1 app. Take a look at Thomas Nigro blog, he does that for the vlc winrt app.
来源：https://stackoverflow.com/questions/33089337/how-to-specify-initial-window-size-for-windows-8-1-app-running-on-windows-10